Farmed fish is a heavily "processed" food because the fish are fed manufactured pellets.
The dried pellets fed to farmed fish are not regulated and are full of dangerous toxins because what the fish eats ends up in you.
Even worse, one particular toxin - a pesticide that has never been ppproved for animal feed - has the ability to cross the all-important blood-brain barrier.
How did this happen?
Watch the video and you'll see.
You'll also see what happened to the researcher who discovered what was going on.